import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Rights from '../components/power/Rights.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GooldsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

// 导入全局样式表
import "../assets/css/global.css"
// import { component } from 'vue/types/umd'

Vue.use(VueRouter)

// 创建router接受路由对象
const router = new VueRouter({
  routes:[
    { path: '/', redirect: '/login'},
    { path: '/login', component: Login},
    { path: '/home', 
      component: Home, 
      redirect: './welcome',
      children: [{ path: '/welcome', component: Welcome }, 
                 { path: '/users', component: Users },
                 { path: '/rights', component: Rights},
                 { path: '/roles', component: Roles},
                 { path: '/categories', component: Cate},
                 { path: '/params', component: Params },
                 { path: '/goods', component: GooldsList},
                 { path: '/goods/add', component: Add},
                 { path: '/orders', component: Order},
                 { path: '/reports', component: Report}
                ]
    },
  ]
})

// 挂载路由导航首位
router.beforeEach((to, from, next) => {
  // to将要访问的路径 from代表从哪个路径跳转而来 next()是一个函数，代表放行 两种形式next() next('/login')
  if(to.path == '/login') return next();
  // 获取token
  const tokenstr = window.sessionStorage.getItem('token');
  if(!tokenstr) return next('/login');
  next();
})

export default router